/*!
     * chiefSlider (https://itchief.ru/lessons/php/feedback-form-for-website)
     * Copyright 2018 Alexander Maltsev
     * Licensed under MIT (https://github.com/itchief/feedback-form/blob/master/LICENSE)
     */

    /* стили для элемента body */
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
      color: #fff;
      
    }

    /* стили основного контейнера слайдера */
    .slider {
      position: relative;
      overflow: hidden;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    /* стили для обёртки, в которой заключены слайды */
    .slider__wrapper {
      position: relative;
      overflow: hidden;
    }

    /* стили для контейнера слайдов */
    .slider__items {
      display: flex;
      transition: transform 0.6s ease;
    }

    /* стили для слайдов */
    .slider__item {
      flex: 0 0 100%;
      max-width: 100%;
    }

    /* стили для кнопок "вперед" и "назад" */
    .slider__control {
      position: absolute;
      top: 50%;
      display: none;
      align-items: center;
      justify-content: center;
      width: 40px;
      color: #fff;
      text-align: center;
      opacity: 0.5;
      height: 50px;
      transform: translateY(-50%);
      background: rgba(0, 0, 0, 0.5);
    }

    .slider__control_show {
      display: flex;
    }

    .slider__control:hover,
    .slider__control:focus {
      color: #fff;
      text-decoration: none;
      outline: 0;
      opacity: 0.9;
    }

    .slider__control_prev {
      left: 0;
    }

    .slider__control_next {
      right: 0;
    }

    .slider__control::before {
      content: '';
      display: inline-block;
      width: 20px;
      height: 20px;
      background: transparent no-repeat center center;
      background-size: 100% 100%;
    }

    .slider__control_prev::before {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E");
    }

    .slider__control_next::before {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E");
    }

    /* стили для индикаторов */
    .slider__indicators {
      position: absolute;
      right: 0;
      bottom: 10px;
      left: 0;
      z-index: 15;
      display: flex;
      justify-content: center;
      padding-left: 0;
      margin-right: 15%;
      margin-left: 15%;
      list-style: none;
      margin-top: 0;
      margin-bottom: 0;
    }

    .slider__indicators li {
      box-sizing: content-box;
      flex: 0 1 auto;
      width: 30px;
      height: 4px;
      margin-right: 3px;
      margin-left: 3px;
      text-indent: -999px;
      cursor: pointer;
      background-color: rgba(255, 255, 255, 0.5);
      background-clip: padding-box;
      border-top: 10px solid transparent;
      border-bottom: 10px solid transparent;
    }

    .slider__indicators li.active {
      background-color: #fff;
    }

    .img-fluid {
      display: inline-block;
      height: 250px;
      max-width: 100%;
    }